Tank cover



FIG. 1 is a front view of the tank cover of the present invention attached to a tank, the rear, left and right views being the same;

FIG. 2 is a top plan view of the invention disclosed in FIG. 1; and,

FIG. 3 is a bottom plan view of the invention disclosed in FIG. 1.

The broken line showing of a tank in FIGS. 1, 2 and 3 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tank cover, as shown and described. 